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1888. The brothers Adolf und Alfred Kurth open a movement and supplies factory for the watchmaking industry in Grenchen, Switzerland
1906. For the first time, complete watches are produced and the brand name "Grana" is used.
1939. Entry of the brand "Certina" at the Federal Institute of Intellectual Property. Over the years more and more watches under the name Certina will be produced.
1947. Production of the first self-winding movement, the KF 360.
1951. The first from Certina developed self-winding rotor movement, the 25-45 comes on the market.
1954. Certina delivers self-winding movements to the American watchmaker Hamilton. 1955. The company's name is changed from Kurth Frères SA, Fabrique de montres Certina, to Certina, Kurth Frères SA.
1958. Production start of the fameous DS line (DS = double security), although it was officially lounged in 1959. Over the next nine years over 300,000 pieces will be sold. 1963. Certina now employs 800 persons and annually produces 500'000 watches.
1968. Certina launches the DS-2 line, the successor model of the successful DS line.
1970.
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